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AX84 P1 Tube Guitar Amplifier Project

[classic projects] [current version] [testing version] [old versions]

Overview

The P1 is a simple tube amp modeled after the classic small guitar amps of the 50's and 60's. It's designed to be a managable project for the first time builder while still offering a satisfying result. An understanding of the dangers of electricity is required to build this amp, but it has been successfully built by a number of people with no previous amp building experience. Although it is a practice amp, you can certainly mic it and use it in a gig.

Be sure to check out the pictures and sound clips below of various flavors of this amp as built by real people.

Features

  • 12AX7 preamp tube provides two stages of preamp gain.
  • EL84/SV83 power tube in Class A, Single Ended configuration provides a very loud 5 watts or so of output power.
  • Bass, Mid and Treble tone controls.
  • Single knob gain control increases the amps volume while increasing the amount of overdrive. It doesn't get a pristine clean tone or a raging death metal tone, but occupies that warm territory in between. Use the amp with a distortion pedal for added flexibility, or use the volume knob on your guitar to vary the amount of power-tube overdrive.

Skill Level: beginner --- Status: Ready to Build.

Before using these materials, please read our terms and conditions.


Current Materials

P1 Theory Document The P1 Theory Document - although this refers to an old rev (10) of the P1, this information is required reading for understanding the basics of a simple tube amp.
Builders Guide The Builders Guide document for single-ended AX84 projects
10.10.04 P1 Schematic, board template and chassis template for the 10.10.04 version of the AX84 P1.
10.10.04 Options Guide This guide contains AX84 options for the P1 amp.
08.05.07 Chassis 1 Drill Plan Drill guide for the P1, Hi-Octane, P1-eXtreme, SEL, and October ~ Studio projects 16" x 8" x 2" chassis.

Older Version Materials

10.06.16 P1 Schematic, board template and chassis template for the 10.06.16 version of the AX84 P1.
09.11.25 P1 Schematic, board template and chassis template for the 09.11.25 version of the AX84 P1.
08.07.08 P1 Schematic, board template and chassis template for the 08.07.08 version of the AX84 P1.
08.05.07 P1 Schematic, bill of materials, board template and chassis layout for the 08.05.07 version of the AX84 P1.
08.04.27 P1 Schematic, bill of materials, board template and chassis layout for the 08.04.27 version of the AX84 P1.  This update adds voltage readings to the schematic.
08.04.10 Chassis Drill Plan
Drill guide for 16" x 8" x 2" chassis.
08.02.29 P1 Schematic, board template and chassis template for the 08.02.29 version of the AX84 P1.
06.02.23 P1 Schematic, board template and chassis template for the 06.02.23 version of the AX84 P1.
05.11.23 P1 Schematic, board template and chassis template for the 05.11.23 version of the AX84 P1.

Is this area looking a little skimpy? Looking for older materials and soundclips from previous version? Check out [the older versions]

Before using these materials, please read our terms and conditions.


AX84® is a registered trademark of Doberman Music Products, LLC. AX84.COM content may not be reproduced without the express written consent of Doberman Music Products, LLC (sales@dobermanamps.com).
For information about using the AX84® trademark, project names and designs, click here